<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        #conten {
            display: inline;
            padding: 50px;
            margin: 100px;
            width: 500px;
            height: 300px;
            border: 2px solid black;

        }
    </style>
</head>

<body>
   
    <div id="conten">content</div>
    </div>
</body>

</html>